EP0621144A1 - Vehicle tire management system including wheel with self-contained tire inflation/deflation apparatus - Google Patents
Vehicle tire management system including wheel with self-contained tire inflation/deflation apparatus Download PDFInfo
- Publication number
- EP0621144A1 EP0621144A1 EP94106097A EP94106097A EP0621144A1 EP 0621144 A1 EP0621144 A1 EP 0621144A1 EP 94106097 A EP94106097 A EP 94106097A EP 94106097 A EP94106097 A EP 94106097A EP 0621144 A1 EP0621144 A1 EP 0621144A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tire
- reservoir
- air
- wheel
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/001—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving
- B60C23/004—Devices for manually or automatically controlling or distributing tyre pressure whilst the vehicle is moving the control being done on the wheel, e.g. using a wheel-mounted reservoir
Definitions
- U.S. Patent No. 4,938,272 entitled “VALVE ACTUATOR FOR TIRE PRESSURE MANAGEMENT", issued July 3, 1990 to W. Sandy, Jr. et al, discloses a system including an air pump or compressor mounted on the vehicle body, and conduits leading from the compressor to valves provided in the vehicle wheels. The valves are remotely actuated by the operator from inside the vehicle to connect the compressor to the tires for inflation, or to connect the tires to the atmosphere for deflation.
- a tire pressure management system for a motor vehicle embodying the present invention includes a high pressure air reservoir, a pump unit, and an air pressure sensor provided on each wheel of the motor vehicle.
- the sensor senses the air pressure in a tire which is mounted on the respective wheel.
- the vehicle includes a plurality of axles, generally four, on which identical wheels with air-inflatable tires are mounted.
- One axle 16 is illustrated in FIG. 1.
- a wheel 18 is rotatably mounted on the axle 16 by bearings 19, and includes a rim 20 on which a tire 22 is mounted.
- a tire inflation space 24 is defined between the rim 20 and the interior of the tire 22.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
- Tires In General (AREA)
Abstract
Description
- The present invention generally relates to motor vehicles, and more specifically to a tire pressure management system for sensing and controlling the air pressure in the tires of a motor vehicle.
- The pressure to which the tires of a motor vehicle should be optimally inflated depends on the type of terrain over which the vehicle is to be driven. The pressure should be relatively high for hard surfaces such as paved roads, and relatively low for soft surfaces such as wet mud or loose sand.
- It is possible to adjust the pressures in the individual tires to a desired value by stopping and exiting the vehicle, manually inflating the tires with a pump to increase the pressure or manually deflating the tires by opening the valves and allowing air to escape to decrease the pressure.
- However, this operation is inconvenient and time consuming, and is especially undesirable in inclement weather or in an otherwise hostile environment. It also suffers from the serious disadvantage that it cannot be performed while the vehicle is moving.
- U.S. Patent No. 4,938,272, entitled "VALVE ACTUATOR FOR TIRE PRESSURE MANAGEMENT", issued July 3, 1990 to W. Sandy, Jr. et al, discloses a system including an air pump or compressor mounted on the vehicle body, and conduits leading from the compressor to valves provided in the vehicle wheels. The valves are remotely actuated by the operator from inside the vehicle to connect the compressor to the tires for inflation, or to connect the tires to the atmosphere for deflation.
- A disadvantage of Sandy's system is that a high pressure air connection including rotating wheel bearing air seals must be made between the conduits leading from the compressor and the rotating wheels. Such connections are difficult to construct and maintain, and a failure of the connections or valves will result in catastrophic deflation of the tires.
- U.S. Patent No. 4,742,857, entitled "TIRE PRESSURE SENSOR AND AIR SUPPLY TO MAINTAIN DESIRED TIRE PRESSURE", issued May 10, 1988, to S. Ghandi discloses a system including a high pressure reservoir and a controller valve provided on each wheel. The valves include pressure sensors which are connected to a display on a control unit mounted inside the vehicle. The valves are remotely actuated by the operator from inside the vehicle to connect the reservoirs to the tires for inflation, or to connect the tires to the atmosphere for deflation.
- Although Ghandi's system eliminates the high pressure rotary air connections of Sandy's system, the high pressure reservoirs must be periodically replenished from outside the vehicle. This limits the operating range of the vehicle and the number of times it can transition between operating conditions requiring different tire pressures. In addition, the valves are exposed to the atmosphere, and can be contaminated by dirt, sand or other ambient matter.
- A tire pressure management system for a motor vehicle embodying the present invention includes a high pressure air reservoir, a pump unit, and an air pressure sensor provided on each wheel of the motor vehicle. The sensor senses the air pressure in a tire which is mounted on the respective wheel.
- The pump unit is controllable to selectively pump air from the tire into the reservoir to deflate the tire, or to pump air from the reservoir into the tire to inflate the tire.
- A control unit which displays the sensed air pressure and controls the pump to inflate or deflate the tire is mounted inside the vehicle for operation by the driver, and is electrically connected to the sensor and pump unit by brush contacts provided between the wheel and axle or inductive coils provided between the wheel and an adjacent structural member.
- The present tire pressure management system does not require high pressure rotary air connections or external means for replenishing the air in the reservoirs. The system is self-contained, and immune from contamination by the environment.
- Since the air is moved between the tires and reservoirs for changing the tire pressure, no air is discharged into the atmosphere and the tire pressures can be changed an indefinite number of times without external replenishment of air being required. The tire pressure can be changed quickly since the reservoirs are located in close proximity to the tires.
- The present tire pressure management system does not require high pressure rotary air connections or external means for replenishing the air in the reservoir.
- In addition, the present system includes a build-in safety feature in that if a valve in the pump unit were to fail in the open position, the tire pressure would be restored to a normal operating value rather being catastrophically deflated.
-
- FIG. 1 is a simplified vertical sectional view illustrating a first embodiment of a vehicle tire pressure management system according to the present invention;
- FIG. 2 is similar to FIG. 1, but illustrates a second embodiment of the system;
- FIG. 3 is also similar to FIG. 1, but illustrates a third embodiment of the system;
- FIG. 4 is a simplified vertical sectional view illustrating an alternative electrical interconnection arrangement of the present system; and
- FIG. 5 is similar to FIG. 4, but illustrates another electrical interconnection arrangement.
- A tire
pressure management system 10 for a motor vehicle is illustrated in FIG. 1. Thesystem 10 includes acontrol unit 12 which is provided on a dashboard or other location in a driver'scompartment 14 or other suitable location which is accessible without exiting the vehicle. - The vehicle includes a plurality of axles, generally four, on which identical wheels with air-inflatable tires are mounted. One
axle 16 is illustrated in FIG. 1. Awheel 18 is rotatably mounted on theaxle 16 bybearings 19, and includes arim 20 on which atire 22 is mounted. Atire inflation space 24 is defined between therim 20 and the interior of thetire 22. - A high
pressure air reservoir 26 is formed in thewheel 18, preferably in therim 20 as illustrated. A compressor orpump 28 is formed or mounted in thewheel 18, preferably as close to theaxle 16 as possible to minimize the moment of inertia. Acounterbalance 30 is provided in thewheel 18 at a position which is diametrically opposed to thepump 28 to eliminate the wheel imbalance created by thepump 28. - The
pump 28 has one port connected to thereservoir 26 through aconduit 32, and another port connected to theinflation space 24 inside thetire 22 through aconduit 34. Thepump 28 is a bi-directional unit, capable of selectively pumping air in either direction, and is electrically driven by abattery 36 of the vehicle through thecontrol unit 12. - An
air pressure sensor 38 is mounted on therim 20 inside theinflation space 24 and feeds an electrical signal corresponding to the sensed tire air pressure to thecontrol unit 12. - The
control unit 12 includes adisplay 40 for displaying the tire pressure as sensed by thesensor 38, a switch orbutton 42 for increasing the tire pressure and a switch orbutton 44 for decreasing the tire pressure. Although only onedisplay 40,button 42 andbutton 44 are illustrated in the drawing, thedisplay unit 12 preferably includes anindividual display 40 andbuttons - The
button 42 is depressed to increase the tire pressure from the value indicated on thedisplay 40. This causes thepump 28 to pump air from thereservoir 26 through theconduits space 24 to inflate thetire 22. Thebutton 44 is depressed to decrease the tire pressure from the value indicated on thedisplay 40. This causes thepump 28 to pump air from thespace 24 through theconduits reservoir 26 to deflate thetire 22. - The
control unit 12 is connected to thesensor 38 andpump 28 by aninterconnection unit 46 including electrical contacts in the form ofannular rings axle 16. Conjugate electrical contacts in the form ofbrushes wheel 18, and make direct electrical contact with therings - The
rings control unit 12 throughlines brushes pump 28 throughlines brush 58 is connected to thesensor 38 through aline 70. Although not illustrated in detail, therings brushes lines axle 16 andwheel 18. - The
axle 16,wheel 18 and the negative terminal of thebattery 36 are connected to the chassis of the vehicle which is designated as ground. One end of thesensor 38 is connected to therim 20, and thereby to ground. This provides a complete circuit path between thesensor 38 and thecontrol unit 12 via theline 70,brush 58,ring 52,line 64 and ground return. - The
pump 28 includes an electric motor including a winding (not shown) having one end connected to thecontrol unit 12 through theline 66,brush 54,ring 48 andline 60, and an opposite end connected to thecontrol unit 12 through theline 68,brush 56,ring 50 andline 62. - The
control unit 12 energizes thepump 28 to pump air from thereservoir 26 into theinflation space 24 by connecting the positive end of thebattery 36 to theline 60 and the negative end (ground) of thebattery 36 to theline 62. The pumping direction is reversed to pump air from theinflation space 24 into thereservoir 26 by connecting the positive end of thebattery 36 to theline 62 and the negative end of thebattery 36 to theline 60. - The
control unit 12 can include aseparate display 40 andbuttons single display 40 andbuttons display 40 andbuttons buttons - It is further within the scope of the invention to sense the pressures in all of the tires, compute and display the average thereof, and inflate or deflate all of the tires together based on the displayed average pressure.
- As yet another alternative, the
control unit 12 can be designed to automatically, rather than manually, regulate the pressures in the tires to a value set on thedisplay 40. In this case, thebuttons display 40 up or down to the desired value of pressure. - FIG. 2 illustrates another tire
pressure management system 80 embodying the invention in which thebi-directional pump 28 is replaced with apump unit 81 including auni-directional pump 82 and avalve 84. Thevalve 84 has one port connected to thereservoir 26 through aconduit 86 and anotherport 88 connected to theinflation space 24 of thetire 22 through aconduit 88 It will be noted that theconduits inflation space 24 andreservoir 26. - The
control unit 12 is connected to thesensor 38 via thelines pump 82 is energized via an electrical signal applied through thelines inflation space 24 into thereservoir 26 to deflate thetire 22 and decrease the pressure in thespace 24. Thevalve 84, which is normally closed, is opened via an electrical signal applied through thelines reservoir 26 into thespace 24 to inflate thetire 22 and increase the pressure in thespace 24. - The present tire
pressure management systems reservoir 26. Thesystems - Since the air is moved between the
tire 22 andreservoir 26 for changing the tire pressure, no air is discharged into the atmosphere and the tire pressure can be changed an indefinite number of times without external replenishment of air being required. The tire pressure can be changed quickly since thereservoir 26 is located in close proximity to thetire 22. - The combined volume of air in the
space 24 andreservoir 26 is selected to be such that if thevalve 84 in thesystem 80 is opened long enough for the pressures in thespace 24 andreservoir 26 to equalize, the pressure will be approximately equal to, preferably slightly greater than, a normal operating pressure of thetire 22. Thus, even if thevalve 84 fails in the open position, thetire 22 will not be catastrophically deflated. - FIG. 3 illustrates another tire
pressure management system 90 which is similar to thesystem 80 except that theconduits conduits reservoir 26 andspace 24 respectively. In this case, thepump 82 andvalve 84 are connected in parallel between theconduits - In the systems illustrated in FIGs. 1 to 3, the
control unit 12 is connected to thepressure sensor 38 and pump 28 orpump unit 81 by direct electrical contacts. It is further within the scope of the invention to interconnect these elements by indirect inductive coupling as illustrated in FIGs. 4 and 5. - As illustrated in FIG. 4, an annular
electrical coil 100 is wound around acore 102 which is coaxially fixed to thewheel 18. Anotherelectrical coil 104 is wound around a C-shapedcore 106 which is mounted on a fixedstructural member 108 of the vehicle. - The
coil 100 is connected to thesensor 38 and pump 28 orpump unit 81, whereas thecoil 104 is connected to thecontrol unit 12. Thecoils - FIG. 5 illustrates another arrangement for inductive signal coupling. In this case, the
coil 100 is replaced by acoil 110 which is wound around a C-shaped core 112. Whereas thecoils coil 110 aligns with thecoil 104 only once per revolution of thewheel 18 relative to themember 108. The arrangement of FIG. 5 is advantageous in that the coupling efficiency in the aligned position is much greater than be attained with the arrangement of FIG. 4. - While several illustrative embodiments of the invention have been shown and described, numerous variations and alternate embodiments will occur to those skilled in the art, without departing from the spirit and scope of the invention. Accordingly, it is intended that the present invention not be limited solely to the specifically described illustrative embodiments. Various modifications are contemplated and can be made without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
- A vehicle wheel on which an air-inflatable tire (22) is mounted , comprising:
an air reservoir (26); and
a pump unit (28; 81) for selectively causing air to flow from the tire (22) into the reservoir (26) for deflating the tire (22), and for causing air to flow from the reservoir (26) into the tire (22) for inflating the tire (22). - The wheel as in claim 1, characterized in that the pump unit (28; 81) comprises a bi-directional pump (28) for selectively pumping air from the tire (22) into the reservoir (26) for deflating the tire (22), and for pumping air from the reservoir (26) into the tire (22) for inflating the tire (22).
- The wheel as in claim 1, characterized in that:
air pressure in the reservoir (26) is higher than air pressure in the tire (22); and
the pump unit (81) comprises:
a pump (82) for pumping air from the tire (22) into the reservoir (26) for deflating the tire (22); and
a valve (84) for communicating the tire (22) with the reservoir (26) for allowing air to flow from the reservoir (26) into the tire (22) for inflating the tire (22). - The wheel as in claim 3, characterized in that the reservoir (26) and the tire (22) in combination contain a predetermined volume of air which is selected such that said air pressure in the tire (22) and the reservoir (26) will equalize to substantially a predetermined tire operating pressure if the pump (82) is de-energized and the valve (84) is opened for a length of time sufficient for said air pressures in the tire (22) and the reservoir (26) to equalize.
- The wheel as in claim 3, characterized in that
the pump unit (81) further comprises first and second conduits (32, 34; 86, 88) connected in parallel with each other between the tire (22) and the reservoir (26);
the pump (82) is connected to pump air from the tire (22) into the reservoir (26) through the first conduit (32, 34) for deflating the tire (22); and
the valve (84) is connected to communicate the tire (22) with the reservoir (26) through the second conduit (86, 88) for inflating the tire (22). - The wheel as in claim 4, characterized in that
the pump unit (81) further comprises first and second conduitS (32, 34) connected to the tire (22) and to the reservoir (26) respectively; and
the pump (82) and the valve (84) are connected in parallel with each other between the first and second conduits (32, 34). - The wheel as in claim 13, characterized by a sensor (38) for sensing the air pressure in the tire (22).
- A tire management system for a vehicle, comprising a wheel (18) as in any one or more of the preceding claims.
- The system as in claim 8, characterized by:
a control unit (12) provided on the vehicle for displaying said air pressure sensed by the sensor (38) and controlling the pump unit (28; 81); and
an electrical interconnection unit (46) for electrically interconnecting the control unit (12) with the sensor (38) and the pump unit (28; 81). - The system as in claim 9, in which the vehicle includes an axle (16) on which the wheel (18) is rotatably mounted, characterized in that
the interconnection unit (46) includes:
first electrical contacts (54, 56, 58) which are provided on an inner periphery of the wheel (18); and
second electrical contacts (48, 50, 52) which are provided on an outer periphery of the axle (16) and electrically engage with respective first electrical contacts. - The system as in claim 10, characterized in that the first electrical contacts (54, 56, 58) include brushes (54, 56 58).
- The system as in claim 9, in which the vehicle includes a structural member (108) relative to which the wheel (18) is rotatable ; characterized in that
the interconnection unit (46) includes:
a first electrical coil (104) which is provided on the structural member (108); and
a second electrical coil (100; 110) which is provided on the wheel (18) and inductively couples with the first electrical coil (104).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/052,344 US5452753A (en) | 1993-04-22 | 1993-04-22 | Vehicle tire management system including wheel with self-contained tire inflation/deflation apparatus |
US52344 | 1993-04-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0621144A1 true EP0621144A1 (en) | 1994-10-26 |
EP0621144B1 EP0621144B1 (en) | 1997-06-11 |
Family
ID=21977006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94106097A Expired - Lifetime EP0621144B1 (en) | 1993-04-22 | 1994-04-20 | Vehicle tire management system including wheel with self-contained tire inflation/deflation apparatus |
Country Status (6)
Country | Link |
---|---|
US (1) | US5452753A (en) |
EP (1) | EP0621144B1 (en) |
JP (1) | JP2558070B2 (en) |
CA (1) | CA2121745A1 (en) |
DE (1) | DE69403723T2 (en) |
MX (1) | MX9402957A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2324511A (en) * | 1997-04-25 | 1998-10-28 | Sumitomo Rubber Ind | A wheel/tyre assembly and a method of regulating pressure therein |
ES2137061A1 (en) * | 1994-12-19 | 1999-12-01 | Munoz Alfonso Luis Santiago | Device for semi-automatic control of the pressure of the tyres of a motor vehicle |
DE10001348A1 (en) * | 2000-01-14 | 2001-07-19 | Paul Horlacher | Electromechanical tire pressure regulating system transfers pressure measurement data and control commands via radio and produces electric energy from wheel rotation |
WO2002074561A1 (en) * | 2001-03-20 | 2002-09-26 | Syegon | System for regulating tyre inflation pressure |
FR2822414A1 (en) * | 2001-10-31 | 2002-09-27 | Syegon | Motor vehicle pressure monitoring wheel and tyre has inner and outer envelopes with pressure control actuators |
WO2003068535A1 (en) * | 2002-02-18 | 2003-08-21 | Tonino Pisu | Tire rim |
DE10360730A1 (en) * | 2003-12-23 | 2005-07-28 | Daimlerchrysler Ag | Motor vehicle`s tire filling regulating system, has compressor and electric motor that are arranged on prefabricated part of rim, and energy transfer unit to inductively transfer energy to motor by induction in contactless manner |
US6994136B2 (en) | 2003-05-02 | 2006-02-07 | Arvinmeritor Technology, Llc | Wheel end tire air pump |
WO2006061479A1 (en) * | 2004-12-09 | 2006-06-15 | Michel Maquaire | Vehicle wheel and system for controlling its tyre pressure |
EP2196336A2 (en) * | 2008-12-11 | 2010-06-16 | AGCO GmbH | Tyre inflation pressure control system |
WO2015114153A1 (en) * | 2014-02-03 | 2015-08-06 | Versec Sprl | Dynamic tire pressure regulator for bicycles |
EP3015295A1 (en) * | 2014-10-31 | 2016-05-04 | The Goodyear Tire & Rubber Company | Vehicle tire management system |
WO2017072795A1 (en) * | 2015-10-30 | 2017-05-04 | Mandal Somjit | Automated air pumping wheel |
WO2017116631A1 (en) | 2015-12-29 | 2017-07-06 | Bridgestone Americas Tire Operations, Llc | Rapid tire inflation system with air compressor |
WO2018117828A1 (en) | 2016-12-23 | 2018-06-28 | Hubtech B.V. | Vehicle wheel, in particular a bicycle wheel, hub for such a wheel and vehicle fitted with such a wheel |
NL2018061B1 (en) * | 2016-12-23 | 2018-07-02 | Hubtech B V | Vehicle wheel, in particular a bicycle wheel, hub for such a wheel and vehicle provided with such a wheel |
US20180319227A1 (en) * | 2017-05-08 | 2018-11-08 | Tarek Abdel-Baset | Selectable tire pressure system in-wheel |
US10953707B2 (en) | 2015-12-29 | 2021-03-23 | Bridgestone Americas Tire Operations, Llc | Air distribution system for rapid tire inflation |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5844130A (en) * | 1996-04-03 | 1998-12-01 | Ssi Technologies | Apparatus for maintaining a constant radial distance between a transmitting circuit and an antenna coil |
JP2001071701A (en) * | 1999-09-08 | 2001-03-21 | Washi Kosan Kk | Wheel |
JP4349707B2 (en) * | 1999-12-07 | 2009-10-21 | 横浜ゴム株式会社 | Tire / wheel assembly |
US6269691B1 (en) * | 2000-03-17 | 2001-08-07 | Equalaire Systems, Inc | Automatic tire inflation system with booster pump |
FR2834671B1 (en) * | 2002-01-11 | 2005-03-25 | Labinal | INFLATABLE WHEEL ASSEMBLY |
US7124789B2 (en) * | 2002-02-05 | 2006-10-24 | Takaji Nakano | Automatic air feeding mechanism for pneumatic tires, and pneumatic tire connecting device |
JP3912184B2 (en) | 2002-05-27 | 2007-05-09 | セイコーエプソン株式会社 | Air supply device |
KR20040046722A (en) * | 2002-11-28 | 2004-06-05 | 현대자동차주식회사 | brake force rising apparatus of a vehicle |
CN100480071C (en) * | 2004-04-23 | 2009-04-22 | 倍耐力轮胎股份公司 | Wheel having controlled pressure and pressure reservoir |
US7043960B1 (en) * | 2004-06-17 | 2006-05-16 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Self-calibrating pressure transducer |
US8955566B2 (en) * | 2004-11-12 | 2015-02-17 | Richard Loewe | Tire pressure maintenance device |
CA2586319C (en) * | 2004-11-12 | 2015-01-13 | Richard Loewe | Tire pressure maintenance device |
US7784513B2 (en) * | 2004-11-12 | 2010-08-31 | Richard Thomas Loewe | Tire pressure maintenance device |
US7127762B1 (en) | 2005-05-12 | 2006-10-31 | Ideal Time Consultants Limited | Inflatable product with stowable pump |
JP4529899B2 (en) | 2005-12-28 | 2010-08-25 | トヨタ自動車株式会社 | Air supply device |
US20080226476A1 (en) * | 2007-03-16 | 2008-09-18 | Lau Vincent W S | Air pump with dual power supply |
KR100937819B1 (en) * | 2008-09-10 | 2010-01-20 | 금호타이어 주식회사 | Device for the tire hydraulic testing |
US8435012B2 (en) * | 2009-11-30 | 2013-05-07 | Dan A. Clinciu | Wheel-mounted air compressor and methods of use |
CN103237668B (en) * | 2011-11-11 | 2015-08-19 | 陈贺章 | Tire pressure regulates and prevents tire burst device and installed the vehicle of described device |
US8532872B2 (en) | 2012-01-13 | 2013-09-10 | International Business Machines Corporation | Tire pressure adjustment |
CN102922960A (en) * | 2012-10-22 | 2013-02-13 | 李光辉 | Intelligent pressure-regulating explosion-proof device for vehicle tires |
US9789739B1 (en) * | 2013-04-23 | 2017-10-17 | Equalaire Systems, Inc. | Small trailer tire inflation system |
EP2994323B1 (en) * | 2013-05-09 | 2018-04-04 | Matlow, Mell | A comprehensive tire pressure maintenance system |
ES2875903T3 (en) | 2013-11-11 | 2021-11-11 | Equalaire Systems Inc | Rotary union for tire inflation system |
DE102014117459A1 (en) * | 2014-03-11 | 2015-09-17 | Klemens Große-Vehne | Pressure medium supply device, wheel unit with a pressure medium supply device and distributed system for pressure medium supply |
US9278588B2 (en) * | 2014-04-10 | 2016-03-08 | Ford Global Technologies, Llc | Tire pressure adjustment system and method |
US9630461B2 (en) * | 2014-06-27 | 2017-04-25 | GM Global Technology Operations LLC | Pressure system for a tire assembly of a vehicle |
DE102014109358A1 (en) | 2014-07-04 | 2016-01-07 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Motor vehicle with a tire measuring and filling device |
EP3075574B1 (en) * | 2015-03-31 | 2017-11-08 | Meritor Heavy Vehicle Systems Cameri SpA | Actuator |
DE102016119272A1 (en) * | 2016-10-11 | 2018-04-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Mechanically driven tire pressure generation |
US11685201B2 (en) | 2016-10-19 | 2023-06-27 | Pressure Systems International, Llc | Inflation manifold |
KR102626840B1 (en) | 2016-12-15 | 2024-01-18 | 액티브 툴스 인터내셔널 (에이치케이) 리미티드. | Tire Maintenance Tools |
US10493808B1 (en) * | 2017-07-26 | 2019-12-03 | Scott McCauley | Central tire inflation system |
US12059930B1 (en) | 2017-07-31 | 2024-08-13 | Aperia Technologies, Inc. | System and method for automatic pressure management |
US10913315B1 (en) | 2019-05-13 | 2021-02-09 | Unicus Innovations Llc | Self contained tire inflator |
US11571936B1 (en) | 2019-05-13 | 2023-02-07 | Unicus Innovations Llc | Self contained tire inflator |
CN111516437A (en) * | 2020-04-30 | 2020-08-11 | 陕西重型汽车有限公司 | Automobile tire inflation and deflation monitoring control system |
CN112659820B (en) * | 2020-12-30 | 2022-05-27 | 杭州电子科技大学 | Automatic inflating and deflating device for automobile tire |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2506677A (en) * | 1944-09-28 | 1950-05-09 | Mckenna Denis | Vehicle wheel |
DE1011756B (en) * | 1953-07-20 | 1957-07-04 | Max Rodler | Device for indicating the escape of air from a pneumatic tire |
EP0166123A2 (en) * | 1984-06-23 | 1986-01-02 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Compressed-air supply device for a tyre-pressure regulating system |
DE8715177U1 (en) * | 1987-11-14 | 1988-01-07 | Kromer, Karl-Hans, Prof. Dr.-Ing., 5300 Bonn | Vehicle with tire pressure monitoring device |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1128455A (en) * | 1914-03-19 | 1915-02-16 | John Watchpocket | Pressure-controller for tires. |
US1338337A (en) * | 1916-10-14 | 1920-04-27 | Arthur W Stonestreet | Automatic pneumatic, pneumatic-tire-inflating mechanism |
US1423607A (en) * | 1920-04-17 | 1922-07-25 | Daniel F Groat | Tire-operated multiple air pump |
US2127152A (en) * | 1937-09-30 | 1938-08-16 | Loys S Boone | Air compressor |
US2623472A (en) * | 1946-07-11 | 1952-12-30 | Raymond Henri Edgard | Reversible pump |
US2781813A (en) * | 1955-02-14 | 1957-02-19 | Arthur D Ferguson | Traction wheel construction |
US2939504A (en) * | 1959-01-16 | 1960-06-07 | Jr James R Bedford | Tire pressure maintaining means |
US3934223A (en) * | 1973-12-04 | 1976-01-20 | Safety Research & Engineering Corporation | Tire pressure warning system |
US4289187A (en) * | 1977-09-02 | 1981-09-15 | Rivin Evgeny I | Pneumatic wheels for vehicles |
JPS55156706A (en) * | 1979-05-21 | 1980-12-06 | Kubota Ltd | Wheel of agricultural vehicle |
US4742857A (en) * | 1986-10-07 | 1988-05-10 | Techni Guidance, Inc. | Tire pressure sensor and air supply to maintain desired tire pressure |
US4938272A (en) * | 1989-01-26 | 1990-07-03 | General Motors Corporation | Valve actuator for tire pressure management |
-
1993
- 1993-04-22 US US08/052,344 patent/US5452753A/en not_active Expired - Lifetime
-
1994
- 1994-04-20 DE DE69403723T patent/DE69403723T2/en not_active Expired - Fee Related
- 1994-04-20 CA CA002121745A patent/CA2121745A1/en not_active Abandoned
- 1994-04-20 EP EP94106097A patent/EP0621144B1/en not_active Expired - Lifetime
- 1994-04-22 MX MX9402957A patent/MX9402957A/en not_active IP Right Cessation
- 1994-04-22 JP JP6084414A patent/JP2558070B2/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2506677A (en) * | 1944-09-28 | 1950-05-09 | Mckenna Denis | Vehicle wheel |
DE1011756B (en) * | 1953-07-20 | 1957-07-04 | Max Rodler | Device for indicating the escape of air from a pneumatic tire |
EP0166123A2 (en) * | 1984-06-23 | 1986-01-02 | Dr.Ing.h.c. F. Porsche Aktiengesellschaft | Compressed-air supply device for a tyre-pressure regulating system |
DE8715177U1 (en) * | 1987-11-14 | 1988-01-07 | Kromer, Karl-Hans, Prof. Dr.-Ing., 5300 Bonn | Vehicle with tire pressure monitoring device |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2137061A1 (en) * | 1994-12-19 | 1999-12-01 | Munoz Alfonso Luis Santiago | Device for semi-automatic control of the pressure of the tyres of a motor vehicle |
GB2324511A (en) * | 1997-04-25 | 1998-10-28 | Sumitomo Rubber Ind | A wheel/tyre assembly and a method of regulating pressure therein |
GB2324511B (en) * | 1997-04-25 | 2001-09-12 | Sumitomo Rubber Ind | A wheel and tyre assembly and a method of regulating the pressure of a tyre on a wheel |
DE10001348A1 (en) * | 2000-01-14 | 2001-07-19 | Paul Horlacher | Electromechanical tire pressure regulating system transfers pressure measurement data and control commands via radio and produces electric energy from wheel rotation |
FR2822413A1 (en) * | 2001-03-20 | 2002-09-27 | Syegon | Automatic regulation of pneumatic tire pressure, tire has outer air filled envelope and inner high pressure air reserve envelope, both of which are controlled by an electronic and logic system |
WO2002074561A1 (en) * | 2001-03-20 | 2002-09-26 | Syegon | System for regulating tyre inflation pressure |
US6976391B2 (en) | 2001-03-20 | 2005-12-20 | Syegon | System for regulating tire inflation pressure |
FR2822414A1 (en) * | 2001-10-31 | 2002-09-27 | Syegon | Motor vehicle pressure monitoring wheel and tyre has inner and outer envelopes with pressure control actuators |
WO2003068535A1 (en) * | 2002-02-18 | 2003-08-21 | Tonino Pisu | Tire rim |
US6994136B2 (en) | 2003-05-02 | 2006-02-07 | Arvinmeritor Technology, Llc | Wheel end tire air pump |
DE10360730A1 (en) * | 2003-12-23 | 2005-07-28 | Daimlerchrysler Ag | Motor vehicle`s tire filling regulating system, has compressor and electric motor that are arranged on prefabricated part of rim, and energy transfer unit to inductively transfer energy to motor by induction in contactless manner |
WO2006061479A1 (en) * | 2004-12-09 | 2006-06-15 | Michel Maquaire | Vehicle wheel and system for controlling its tyre pressure |
FR2879128A1 (en) * | 2004-12-09 | 2006-06-16 | Michel Maquaire | WHEEL FOR VEHICLE AND INFLATION PRESSURE CONTROL SYSTEM |
EP2196336A3 (en) * | 2008-12-11 | 2010-12-29 | AGCO GmbH | Tyre inflation pressure control system |
EP2196336A2 (en) * | 2008-12-11 | 2010-06-16 | AGCO GmbH | Tyre inflation pressure control system |
US10124631B2 (en) | 2014-02-03 | 2018-11-13 | Versec Sprl | Dynamic tire pressure regulator for bicycles |
WO2015114153A1 (en) * | 2014-02-03 | 2015-08-06 | Versec Sprl | Dynamic tire pressure regulator for bicycles |
EP3015295A1 (en) * | 2014-10-31 | 2016-05-04 | The Goodyear Tire & Rubber Company | Vehicle tire management system |
WO2017072795A1 (en) * | 2015-10-30 | 2017-05-04 | Mandal Somjit | Automated air pumping wheel |
WO2017116631A1 (en) | 2015-12-29 | 2017-07-06 | Bridgestone Americas Tire Operations, Llc | Rapid tire inflation system with air compressor |
EP3397532A4 (en) * | 2015-12-29 | 2019-08-21 | Bridgestone Americas Tire Operations, LLC | Rapid tire inflation system with air compressor |
US10953707B2 (en) | 2015-12-29 | 2021-03-23 | Bridgestone Americas Tire Operations, Llc | Air distribution system for rapid tire inflation |
US11021023B2 (en) | 2015-12-29 | 2021-06-01 | Bridgestone Americas Tire Operations, Llc | Rapid tire inflation system with air compressor |
NL2018061B1 (en) * | 2016-12-23 | 2018-07-02 | Hubtech B V | Vehicle wheel, in particular a bicycle wheel, hub for such a wheel and vehicle provided with such a wheel |
WO2018117828A1 (en) | 2016-12-23 | 2018-06-28 | Hubtech B.V. | Vehicle wheel, in particular a bicycle wheel, hub for such a wheel and vehicle fitted with such a wheel |
CN110312623A (en) * | 2016-12-23 | 2019-10-08 | 哈珀科技控股公司 | Wheel, especially cycle wheel, for this wheel wheel hub and be equipped with the vehicle of this wheel |
US11613147B2 (en) | 2016-12-23 | 2023-03-28 | Hubtech Holding B.V. | Vehicle wheel, in particular a bicycle wheel, hub for such a wheel and vehicle fitted with such a wheel |
CN110312623B (en) * | 2016-12-23 | 2023-08-11 | 哈珀科技控股公司 | Wheel, in particular bicycle wheel, hub for such a wheel and vehicle equipped with such a wheel |
US20180319227A1 (en) * | 2017-05-08 | 2018-11-08 | Tarek Abdel-Baset | Selectable tire pressure system in-wheel |
WO2018208766A1 (en) * | 2017-05-08 | 2018-11-15 | Fca Us Llc | Selectable tire pressure system in-wheel |
US10987978B2 (en) | 2017-05-08 | 2021-04-27 | Fca Us Llc | Selectable tire pressure system in-wheel |
Also Published As
Publication number | Publication date |
---|---|
JP2558070B2 (en) | 1996-11-27 |
US5452753A (en) | 1995-09-26 |
CA2121745A1 (en) | 1994-10-23 |
EP0621144B1 (en) | 1997-06-11 |
DE69403723D1 (en) | 1997-07-17 |
DE69403723T2 (en) | 1998-01-29 |
JPH0769017A (en) | 1995-03-14 |
MX9402957A (en) | 1995-01-31 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5452753A (en) | Vehicle tire management system including wheel with self-contained tire inflation/deflation apparatus | |
EP3015295B1 (en) | Vehicle tire management system | |
US4498515A (en) | Onboard tire inflation system | |
EP0344002B1 (en) | Central tire inflation system and method for sensing and indication of inadequate rate of change of tire inflation pressurization | |
US10576792B2 (en) | All-weather tire | |
US7784513B2 (en) | Tire pressure maintenance device | |
CN104827843B (en) | Vehicle | |
KR910000713B1 (en) | Automated vehicle tire pressurization system | |
US10987978B2 (en) | Selectable tire pressure system in-wheel | |
JPH0440211B2 (en) | ||
JP2008519735A (en) | Tire pressure maintenance device | |
CA2111180A1 (en) | Trailer Detection Control for Vehicle Central Tire Inflation System | |
US4598750A (en) | Tire inflation/deflation system | |
EP2196336A2 (en) | Tyre inflation pressure control system | |
CN108349338A (en) | The vehicle-mounted integrated system of the pressure of tire for adjusting motor vehicles | |
EP0332472B1 (en) | Tire deflation system | |
CN108349337A (en) | The vehicle-mounted integrated system of the pressure of tire for adjusting motor vehicles | |
EP0378891B1 (en) | Rapid tire deflation | |
US6810982B2 (en) | Lift axle control | |
US4696334A (en) | Deflating device for pneumatic tires of vehicles | |
WO1998001310A1 (en) | Device for automatic maintenance of correct tyre pressure | |
EP3743297B1 (en) | Inflation/deflation system | |
US6412525B1 (en) | Device for filling or deflating a tire of a vehicle, especially of a tractor | |
WO2017077304A1 (en) | Device and method for transporting air between an air source of a vehicle and a tyre valve | |
EP3374204B1 (en) | A control circuit for controlling the pressure of a tire wheel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): DE FR GB IT SE |
|
17P | Request for examination filed |
Effective date: 19950414 |
|
17Q | First examination report despatched |
Effective date: 19960314 |
|
GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT SE |
|
REF | Corresponds to: |
Ref document number: 69403723 Country of ref document: DE Date of ref document: 19970717 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19980421 |
|
26N | No opposition filed | ||
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E |
|
EUG | Se: european patent has lapsed |
Ref document number: 94106097.2 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: TP Ref country code: FR Ref legal event code: CD Ref country code: FR Ref legal event code: CA |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20020311 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20020313 Year of fee payment: 9 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20020314 Year of fee payment: 9 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20030420 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031101 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20030420 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031231 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050420 |